It is possible to install OES on either supported platform without including the Apache Web Server or the Tomcat Servlet Container. For example, if you install OES NetWare® using the Customized NetWare Server option, neither of these components is selected by default.
If you are unable to access the Welcome Web site, your server is probably missing one or both of these required components. To make the site available, you need to add the components to the OES server.